Bolster construction



Nov. 23 192e. l 1,608,235

L. RICHARDSON BOLSTER CONSTRUCTION Filed Nov. 2e, '1924 umHummm* Patented Nov. 23, 1926.

umriss stares rior-rs erica.

LAVRENCE RCHARDSGN, OF LOUISVILLE, KENTUCKY.

BOLSTER'CQNSTRUCTON.

Application le'dNoveinber 26, 15:24h.y SerialiNo.v 752,394;

This invention relates to bolster construe tions.

1n freight. car. constructions now in use,

`uerailnients caused by excessive rocking or high rail toprevent derailinents.

rFliese and other objects are accomplished.`

by means of the arrangement disclosed by the accompanying sheet oir' drawings7 in which.

Figure 1 is a fragmentary side elevation of, a railway can embodying my invention, and

Figure 2, is a sectionalk view taken transversely ot the car and longitudinally through the .spring bolstery member.

The various novel features ot the invention will be apparent. from the follow-ing;description and drawings and will be particu larly set forth in the appendedv claims,

Reterriiigto the :figures of the drawings, it

ill be noted tliatthe invention is illustrated in connection with a railway carv havingja body 1() with a body bolster 11liaving.I a center bearing: lenpjaging the center bearingA portion ofa secondA bolster meinbei' 13,

the-latter of which is mounted within andY supported by a thirdbolster member 14. The bolster member 1.1has side bearings 15 which are adapted toeiigage side bearings 16 on the intermediate bolster member 13. rlhe truck bolster member 14 preferably i'shollow and has a depressed floor portion 17 with fiat bearingportions 18 which receive and support the intermediate bolster meniber 13.

The points of support 18 'fall within the A lines'connecting the center of gravityv 19 ot the car and the heads ot' the rails Q0 so that under'conditions which would cause violent rocking of the car, such rocking` action would take place about suchv points 18 within said A lines whereby a certain minimum weight will be maintained on the outside or light wheels, orwheels on the high rail, making` it practically impossible for a wheel to become derailed. It will be appreciated that it the points of support 1S should befoutside oty the A lines in'y question thatv derailments; would be more aptl to occur., Also preferably the points-rot` support. 180i one bolster member witlrrespect to the other shouldbe located as low with respect to the: ln this way saidl pointsr may be spaced an iiicreasedfamount .and still. be within the A lines ythereby lessening'the` rails as possible.

chance of'any roelringaction uponvsaid points of support. The side bearing members 15 and 16 correspond to the regular sideboar-V ings and they are located far enough; out.

rrom the center so that theyy can beeasily iii-.- spected and maintained; [is aresult thereot, clearance between said side bearings-may be easily watched and maintained so that just the proper clearance will be permitted` andfno'more to minimize the rockingV action. permittedbetween said side bearinas 15 and 16. Placing, of the side bearings loand 16 outy af'considerable distance also minimizes i" the maximum load to be sustained by said bearings. This is particularly important: in connection with'heavy cars the main'- teiiance of side bearings on such cars has been a dih'icult problem. By means of the supporting arrangement betweenV the two bolster members 13 and 14 it ispossible to place the pointsA otl contact in a low plane with respect to the rail as mentioned hereinbe'tore, thereby making the distance between saidpoints ot support a maximum and lessening,V the chance oic rocking on said points.

ln'this connection itwill'be noted thatv the bolster member 11i is supported upon springs 21 which inturnrest upon the tension member 22 of side frames 23; Y v

rlhe three bolster members 11, 13 and 14 are all transverse bolster members` and are. in vertical alignment. The bolster member 11 is the usual body bolster member, and the Abolster members 13 and 141imay be kcalled the truck or spring bolster members. lt will be notedthat two ot the three bolster members have cooperative side bearings and onel of the three bolster members ysupports another one of said bolster memberswithin itsell:l at two spaced points inside the lines connecting the center of gravity of the car and the heads of tlie'rails, normally to-prevent rocking' of one of said bolster members upon the other to minimize the rocking of the car. In this connection7 let it be assumed that the left hand upper side bearing member 15 has passed or rocked into engagement with the associated side bearing member 16. This rocking pressure is thereby transmitted to the intermediate bolster 13 through a relatively small leverI arm represented by the horizontal distance between the vertical lines passing through bearings 16 and 18. The total pressure of the car body is distributed throughout the full length oli the intermediate bolster 18 and accordingly throughout the bolster 14 and by virtue of the tact that the bearing points 18 are low and relatively close to the wheels, relatively great pressure is maintained on the high wheels which under the imposed conditions are at the right side of the truck. Accordingly excessive rocking action and derailments are avoided or at least minimized.`

It willV be-understood that the parts may be arranged in various different combinations and it is my intention to cover all such arrangements and modifications which do not involve a departure from the spirit and scope of the invention.

I claim:

1; In a railway car, the combination of a body bolster having side bearings, and a truck bolster comprising two bolster members one `within the other and one of said bolster members supporting the other at tri/o spaced points inside'the lines connecting the center ot gravity of the car and t1 e heads oi the rails normally to prevent rocking of one oit said bolster members with respect to the other and to minimize rocking of the car, one of said bolster mcmbc s having side bearings for cooperative engagement with said other bearings. l

2. ln a railway car, the combination ot a body bolster having' side bearings7 and a truck bolster comprising two bolster members, one of said bolster members supporting the other at a plurality of spaced points in a relatively low plane with respect to the rails and inside of the lines connecting the center of gravity oit they car and the heads i' of the rails normally to prevent rocking oli` one of said bolster members with respect to the other and to minimize reciting of the car; one of said bolster members having side bearings for cooperative engagement with said other bearings.

3. In a railway car, the combination of a i body bolster having side bearings, a spring body bolster, a spring bolster member having a plurality of .spaced points of support, and an intermediate bolster member having side bearings cooperating with said other side bearings and mounted within said spring bolster member and upon said spaced points ot support normally to prevent rocking of said intermediate bolster member uponthe spring bolster member and to minimize rocking of the car. y

5. ln a railway car, the combination of three bolster members, two of which have cooperative side bearings and one of the three necting the center of gravity of the car and the heads oifthe rails to minimize rocking of the car.

i i'. ln a railway car, the combination of three parallel arranged vertically aligned bolster members, two of which have cooperative .side bearings, and one oi the three of which supports another one at two spaced points inside of the lines connecting .the cenI ter ot gravity oi the car and the heads of the rails to minimize rocking ofthe car.

8. in a railway car7 the combination ot three bolster members two of which have a cooperative association with respect to each other and oneol the three of which supports another one within itself and at two spaced points inside of the lines connecting the center or gravity ofthe car and the heads of the rails to minimize rocking of the car. Y

9. ln a railway car7 the combination oli' three parallel arranged vertically aligned bolster members, two oi: which have cooperain g the center of gravity of the car and the heads of the rails,"and one of the three Vot which holsters .supports another one at two spaced points insideqolf said lines to minimise rocking oi the car.

10. In a railway cara thecombination of three bolster members, two of whichxmay have cooperative sidebearings, and one of the three oit which supports another one at two spaced points inside of the lines connecting the center off gravity of the car and the heads oi the rails to minimize rocking ot the car. 1' 'y y y y Signed atUhicago, Illinois, this 24th day oie November, 1924. i Y i V7e side bearings outside the lines connect-` Lawrienon `mor-numson. 

